<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[探索世界，改变世界]]></title><description><![CDATA[善于分享知识，勤于探索知识，知识就是力量。]]></description><link>https://blog.youkuaiyun.com/ChenVast</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; ChenVast]]></copyright><item><title><![CDATA[数据中台的思考与总结]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/116492011</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/116492011</guid><author>ChenVast</author><pubDate>Fri, 07 May 2021 14:13:07 +0800</pubDate><description><![CDATA[本文将总结下数据中台的相关理论知识。
Flink平台化需要改进的点等等。

参考：
《数据中台》]]></description><category></category></item><item><title><![CDATA[建立数据目录的6个步骤]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/116481416</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/116481416</guid><author>ChenVast</author><pubDate>Fri, 07 May 2021 09:32:32 +0800</pubDate><description><![CDATA[数据目录是所有数据的系统性列表，以表、文件、报告等形式存在于公司的各种源系统中。它的工作原理很像时装目录,但它没有详细介绍泳装或鞋子，而是从一家公司的ERP、人力资源、财务、电子商务系统以及社交媒体源获得信息。目录还显示了所有数据实体的位置。
  数据目录包含关于每个数据片段的大量关键信息，比如数据的概要(关于数据的统计或信息摘要)、沿袭(数据如何生成)以及其他人对它的看法。目录是数据分析师、数据管理员、数据科学家和其他人员寻找和理解相关数据集以建立洞察、发现趋势和为公司确定新产品的切入点。]]></description><category></category></item><item><title><![CDATA[数据库优化笔记]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/108990483</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/108990483</guid><author>ChenVast</author><pubDate>Sat, 10 Oct 2020 09:11:54 +0800</pubDate><description><![CDATA[设计表时要注意：

1.表字段避免null值出现，null值很难查询优化且占用额外的索引空间，推荐默认数字0代替null。

2.尽量使用INT而非BIGINT，如果非负则加上UNSIGNED（这样数值容量会扩大一倍），当然能使用TINYINT、SMALLINT、MEDIUM_INT更好。

3.使用枚举或整数代替字符串类型

4.尽量使用TIMESTAMP而非DATETIME

5.单表不要有太多字段，建议在20以内

6.用整型来存IP



索引

1.索引并不是越多越好，要根据查询有针...]]></description><category></category></item><item><title><![CDATA[【项目管理】如何进行项目期望管理？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107202329</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107202329</guid><author>ChenVast</author><pubDate>Wed, 08 Jul 2020 11:44:54 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】提升项目团队绩效的关键]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107202299</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107202299</guid><author>ChenVast</author><pubDate>Wed, 08 Jul 2020 11:44:09 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何进行项目差异管理？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107202281</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107202281</guid><author>ChenVast</author><pubDate>Wed, 08 Jul 2020 11:43:20 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】结束项目需要做什么？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107202250</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107202250</guid><author>ChenVast</author><pubDate>Wed, 08 Jul 2020 11:42:11 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】项目管理相关话题！！]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107202228</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107202228</guid><author>ChenVast</author><pubDate>Wed, 08 Jul 2020 11:41:23 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何进行项目沟通管理？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107105559</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107105559</guid><author>ChenVast</author><pubDate>Fri, 03 Jul 2020 14:43:32 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何领导项目？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107105547</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107105547</guid><author>ChenVast</author><pubDate>Fri, 03 Jul 2020 14:42:59 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何管理项目质量？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107105520</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107105520</guid><author>ChenVast</author><pubDate>Fri, 03 Jul 2020 14:42:23 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何进行项目风险管理？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107105503</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107105503</guid><author>ChenVast</author><pubDate>Fri, 03 Jul 2020 14:41:41 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何进行项目问题管理？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107105489</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107105489</guid><author>ChenVast</author><pubDate>Fri, 03 Jul 2020 14:41:08 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】管理项目的可交付成果]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/107105464</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/107105464</guid><author>ChenVast</author><pubDate>Fri, 03 Jul 2020 14:40:24 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何进行项目变更管理？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/106857003</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/106857003</guid><author>ChenVast</author><pubDate>Fri, 19 Jun 2020 15:17:08 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如果进行项目控制？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/106856993</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/106856993</guid><author>ChenVast</author><pubDate>Fri, 19 Jun 2020 15:16:25 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何确定项目预算？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/106856981</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/106856981</guid><author>ChenVast</author><pubDate>Fri, 19 Jun 2020 15:15:40 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何制定进度计划？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/106856965</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/106856965</guid><author>ChenVast</author><pubDate>Fri, 19 Jun 2020 15:14:56 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】怎么做项目工作估算？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/106856953</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/106856953</guid><author>ChenVast</author><pubDate>Fri, 19 Jun 2020 15:14:19 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【项目管理】如何制定工作分解结构(WBS)？]]></title><link>https://blog.youkuaiyun.com/ChenVast/article/details/106856933</link><guid>https://blog.youkuaiyun.com/ChenVast/article/details/106856933</guid><author>ChenVast</author><pubDate>Fri, 19 Jun 2020 15:13:40 +0800</pubDate><description><![CDATA[]]></description><category></category></item></channel></rss>